Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Recreational
HOLDFAST IV
MMSI 368336240 · Call sign WDP2433
Not yet on Master's MateType
Recreational
Flag
USALength
12.1 m
Beam
3.8 m
Draft
2.1 m
Call sign
WDP2433
Official No.
1296315
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
HOLDFAST IV, a pleasure boat under American registration, measures 12.1 metres on deck. Her hull carries 3.8 metres in the beam and a draft measuring 2.1 metres. She's listed under MMSI 368336240, call sign WDP2433. Put HOLDFAST IV on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for recreational captains
Keep HOLDFAST IV looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 16:24 UTC
Position
48.5135° N, 122.6079° W
Status
Under way (engine)
Speed
0.0 kn
Course
0°
Cruising the Salish Sea? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put HOLDFAST IV on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim HOLDFAST IV and switch it all on
Free to join · nothing to install to start · cancel anytime
About HOLDFAST IV
What kind of vessel is HOLDFAST IV?
HOLDFAST IV is a Recreational flagged to United States of America.
Where was HOLDFAST IV last seen?
HOLDFAST IV was last reported in the Salish Sea in Jun 2026 on public AIS.
What is HOLDFAST IV's MMSI?
HOLDFAST IV's MMSI is 368336240. Call sign WDP2433.
How big is HOLDFAST IV?
HOLDFAST IV is about 12.1 m long, 3.8 m on the beam, drawing 2.1 m.
Is HOLDFAST IV on the Master's Mate Safety Initiative Network?
Not yet. If HOLDFAST IV is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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